An international journal published by K. N. Toosi University of Technology

Particle Accelerators, Ion sources
Design and simulation of an S-Band tunable solid-state power amplifier as an RF injector into a miniature ECR ion source

Hamid Rahimpour; HamidReza Mirzaei; Masoomeh Yarmohammadi Satri; Zafar Riazi Mobaraki

Articles in Press, Accepted Manuscript, Available Online from 11 June 2022

https://doi.org/10.22034/rpe.2022.336199.1069

Abstract
  A continuous-wave solid-state-based power amplifier is designed and simulated in this paper to work as an RF injector into an ECR ion source chamber. Employing a solid-state radio frequency power amplifier, instead of microwave tubes, leads to having higher efficiency, lower price, compact size, and ...  Read More

Measurement of Radiation and Radioactivity
Determination of TG-43 dosimetric parameters for I-125, Ir-192 and Co-60 brachytherapy sources using the Monte Carlo simulation

Milad Payandeh; Mahdi Sadeghi; Dylan Richeson; Somayeh Gholami

Articles in Press, Accepted Manuscript, Available Online from 23 June 2022

https://doi.org/10.22034/rpe.2022.323131.1050

Abstract
  It is important to have accurate information regarding the dose distribution for treatment planning and to accurately deposit that dose in the tissue surrounding the brachytherapy source. However, the practical measurement of dose distribution for various reasons is associated with several problems. ...  Read More

Radioanalytical Methods and Radiochemistry
Design of a two-dimensional pseudo coincidence Compton suppressor system for neutron activation analysis

Ali Biganeh; Banin Shakeri Jooybari

Articles in Press, Accepted Manuscript, Available Online from 28 June 2022

https://doi.org/10.22034/rpe.2022.335909.1067

Abstract
  Compton scattering events are the main source of error on the peak counting during the Neutron Activation Analysis (NAA). The Compton suppressor system in instrumental NAA reduces the detection limit of the technique and leads to a data with a higher degree of precision. In this paper, a two-dimensional ...  Read More

Nuclear Reactor science and Technology
Dynamic behavior analysis of different pressurizer types on a high-pressure test facility

Abolfazl Shoghi; Seyed Ali Hosseini; Amir Saeed Shirani; Mehdi Zangian

Articles in Press, Accepted Manuscript, Available Online from 05 July 2022

https://doi.org/10.22034/rpe.2022.337040.1073

Abstract
  The pressurizer is a key equipment to ensure the safe operation of pressurized water reactor by maintaining the reactor coolant system pressure within allowed tolerances. Various pressure control systems (Pressurizer) are adopted in industrial applications to satisfy their characteristics. In accordance ...  Read More

Particle Accelerators, Ion sources
Kinetic investigation of tellurium hexafluoride production using the volumetric method

Amir Charkhi; Parisa Zaheri; Amjad Sazgar; Iman Dehghan

Articles in Press, Accepted Manuscript, Available Online from 06 July 2022

https://doi.org/10.22034/rpe.2022.342624.1089

Abstract
  Since the production of tellurium hexafluoride gas requires the design of a suitable reactor system, so the study of tellurium oxide fluorination kinetics is of great importance. For this purpose, a novel laboratory system was designed and constructed to study the fluorination reactions by the volumetric ...  Read More

Measurement of Radiation and Radioactivity
Comparison of conversion factor methods in spectrometric dosimetry systems based on NaI(Tl) scintillation detectors

Akbar Abdi Saray; Hossein Zaki Dizaji; Mortaza Taheri Balanoji

Articles in Press, Accepted Manuscript, Available Online from 07 July 2022

https://doi.org/10.22034/rpe.2022.341568.1088

Abstract
  To monitor personal safety in the fields of biomedical and health physics, it is necessary to be aware of radiation doses to protect the health and safety of persons. Radiation protection quantities such as air kerma, ambient dose equivalent, and exposure dose rate are obtained by the measured spectrum ...  Read More

Fusion Technology and Equipment
Introducing the domestic multi-dimensional particle-in-cell code AZERAP

Jam yazdanpanah

Articles in Press, Accepted Manuscript, Available Online from 15 July 2022

https://doi.org/10.22034/rpe.2022.341201.1086

Abstract
  The domestic plasma modeling framework AZERAP is introduced and its capabilities in simulating the plasma based accelerators and intense beam-plasma interaction are discussed. The current first beta-release of AZERAP exploits the fully kinetic, electromagnetic relativistic PIC algorithm as its numerical ...  Read More

Radiation Sources
Effects of fusion plasma ions on Aluminum and Tungsten samples using a plasma focus device: a comparison study

Ali Adeli Ahmadabadi; Zahra Shahbazi rad; Fereidon Abbasi Davani; Behjat Ghasemi

Articles in Press, Accepted Manuscript, Available Online from 18 July 2022

https://doi.org/10.22034/rpe.2022.340478.1085

Abstract
  In this research, the effect of ions produced in deuterium plasma on Tungsten (W) and Aluminum (Al) plates has been investigated using a plasma focus device with the specifications of (C=10.4 μF, V=23 kV, E=2.75 kJ). The W samples used because it is one of the key elements in the Tokamak device. Because ...  Read More

Measurement of Radiation and Radioactivity
Spectrophotometric evaluation of a Nickel-based complex solution for use as a radiation dosimeter

Vahidreza Babaei; Peiman Rezaeian; Sedigheh Kashian; Reza Pourimani; Azam Akhavan

Articles in Press, Accepted Manuscript, Available Online from 22 July 2022

https://doi.org/10.22034/rpe.2022.341441.1087

Abstract
  In this paper, the spectrophotometric properties of a colored Nickel-based solution complex (Nickel nitrate hexahydrate and Methyl Orange (MO)) were investigated as a stable chemical dosimeter for using in radiation processing of agricultural products. Its simple synthesis method as well as low cost ...  Read More

Experimental and Theoretical Nuclear Physics
Dechanneling and the energy loss of protons along planar directions of Si

Sepideh Shafiei; Mohammad Lamehi-Rachti

Articles in Press, Accepted Manuscript, Available Online from 31 July 2022

https://doi.org/10.22034/rpe.2022.337852.1082

Abstract
  In the present paper, the dechanneling and the energy loss of protons at the energy interval of 1400 to 2200 keV along the {100} and the {110} planar directions of Si were studied by the simulation of the measured channeling Rutherford back-scattering spectra based on the exponential dechanneling function ...  Read More

Nuclear Reactor science and Technology
Isotopic discharge concentrations of Tehran research reactor using deterministic and Monte Carlo methods

Farrokh Khoshahval; Mohammad Rajaee; Nafiseh Tehrani

Articles in Press, Accepted Manuscript, Available Online from 13 August 2022

https://doi.org/10.22034/rpe.2022.347567.1092

Abstract
  Actinide concentration and activity analysis of the nuclides resulted from the burnup (depletion) process during nuclear reactor operation lifetime is an essential problem in reactor design. Inventory and the corresponding activities of the Tehran Research Reactor (TRR) are evaluated using different ...  Read More

Nuclear Reactor science and Technology
‎Development of SUAP toolkit for performing uncertainty quantification and sensitivity analysis in fuel performance ‎m‎odeling‎

Hamed Khodadadi; Kamyar Sabetghadam

Articles in Press, Accepted Manuscript, Available Online from 17 August 2022

https://doi.org/10.22034/rpe.2022.348646.1093

Abstract
  Probabilistic uncertainty and sensitivity analysis is frequently recommended for safety and reliability assessment of computer simulations. For this purpose, SUAP has been developed, and its latest version is capable of working on analysis results obtained using five well-known nuclear codes (i.e. FRAPCON, ...  Read More

Measurement of Radiation and Radioactivity
Radiological assessment of different varieties of pistachios produced in Iran

Reza Pourimani; Monire Mohebian; Mobina Abdi

Articles in Press, Accepted Manuscript, Available Online from 23 August 2022

https://doi.org/10.22034/rpe.2022.352565.1096

Abstract
  Nuclear radiations are harmful to the human body. The main sources of nuclear radiation are the decay chains of U-238, U-235, and Th-232 and also some radionuclides as K-40, which are present in small amounts in the materials of the earth's crust, including plants, rocks, soil and water. Radioactive ...  Read More

Radiation Sources
Radiation hazards from granite and bitumen in construction material site in Aniocha South Local Government Area of Delta State, South-South Nigeria

Blessing Okeoghene Ijabor; Akintayo Daniel Omojola; Augustine Onyema Nwabuoku; Funmilayo Ruth Omojola

Articles in Press, Accepted Manuscript, Available Online from 24 August 2022

https://doi.org/10.22034/rpe.2022.342868.1090

Abstract
  The study is aimed at measuring the outdoor background ionizing radiation (BIR), the absorbed dose rate (ADR), the annual effective dose (AED) and excessive lifetime cancer risk (ELCR) at four sites in the Aniocha South local government area (LGA) of Delta State, denoted as A-D. The study was performed ...  Read More

Studying the effect of backgrounds on the determination of radiative thermal neutron capture cross-section in the Neutron Powder Diffraction facility of the Tehran Research Reactor

Mahya Pazoki; Hamid Jafari; Zohreh Gholamzadeh

Articles in Press, Accepted Manuscript, Available Online from 25 August 2022

https://doi.org/10.22034/rpe.2022.349750.1094

Abstract
  Neutron data and cross-sections are highly regarded and are essential for developing nuclear equipment such as advanced fission and fusion reactors, accelerators, neutron shielding, physics studies, etc. The neutron cross-section should preferably be measured using a single-energy neutron beam, although ...  Read More

Measurement of Radiation and Radioactivity
Effect of marker material on the dosimetric parameters of I-125 source (model 6711): Monte Carlo simulation

Payvand Taherparvar; Ali AziziGanjgah

Articles in Press, Accepted Manuscript, Available Online from 31 August 2022

https://doi.org/10.22034/rpe.2022.338851.1079

Abstract
  Low energy I-125- seeds are considered as a common source in different brachytherapy techniques for treatment of different cancers. In this study, at first, we simulated and validated I-125 (model 6711) seed according to the TG-43U1 recommendation, by GEANT4 Monte Carlo toolkit. Moreover, we simulated ...  Read More